Top Tech Startups in Illinois, US in 2026

Archesys provides a wide range of technical services and has been doing so for over 20 years, making a significant impact in the areas of organization, culture, and technology in both the private and public sectors. From digital modernization to process management, our team is the go-to resource for various government agencies looking to improve or overhaul their operations.

Optime-Tech is a technology, consulting and global IT service provider. With our core values of customer centricity, agility and innovation, we partner with our customers to help drive positive outcomes. We work relentlessly and systematically to exhaust every avenue in bringing our clients the best available services, our approach is substantial, our passion, enthusiasm and dedication is evident.

Kunai is a safe workplace for brilliant minds in the fields of software engineering & architecture, business development, recruiting and strategy. We specialize as an agency for fintech organizations ranging from unicorn startups to Fortune 500 companies. Our team of 120+ individuals is dispersed all around the world, which organically builds diversity into our culture's DNA. Our mission is to take care of our people so that together we can all do the best work of our lives.

NextRoll is a leading marketing technology company that empowers businesses to drive sustainable growth while building trusted connections with their audiences. Built on nearly two decades of AI and data expertise, NextRoll delivers its solutions through AdRoll, its flagship brand and connected advertising platform. The AdRoll platform brings together two powerful offerings: the AdRoll product, which helps brands generate awareness, deepen engagement, and drive measurable revenue through AI-powered multi-channel campaigns; and AdRoll ABM, a full-funnel account-based marketing product that unifies buyer insights, predictive AI, and multi-touch advertising to accelerate pipeline and revenue for B2B teams. Together, these solutions give marketers the clarity, efficiency, and performance they need to grow with confidence. NextRoll is a privately held company headquartered in San Francisco, CA.

Upbound is the industry’s first platform for building internal cloud platforms. Designed around control planes, Upbound offers a new methodology for building an internal cloud platform, purpose-built for your organization. Customers can quickly build, deploy, manage, secure, and use their platforms all from a single point of control.

nOps is an automated cloud optimization platform that makes it easy to allocate and manage cloud usage, commitments, and spend. Managing $4B+ in annual cloud spend, nOps helps companies of every size, from fast-growing startups to global enterprises, reclaim millions in wasted cloud costs. Cloud waste is one of the fastest growing challenges in tech. nOps tackles it by leveraging proprietary ML modeling and AI-powered automation to guide organizations toward the right commitment strategy. The platform eliminates manual provisioning entirely, delivering maximum cost savings without sacrificing reliability, so teams can focus on building and innovating. Trusted by innovative brands around the world, nOps has been recognized as a G2 Top 50 Security Product and G2 Leader for Winter 2025, is an AWS Advanced Technology Partner, and a proud FinOps Foundation Member with our CEO serving on the FinOps Foundation Governing Board.

A platform that automates the collection, assignment and execution against that physical world data that transforms businesses

Showpad delivers the world’s most intuitive sales enablement platform, one that increases the effectiveness of your content by making it incredibly easy to find, present, share, and measure. Our platform enables organizations to equip their customers, partners, and sales reps with the right content at the right time, anywhere and from any device. Unlike traditional file sharing or content management systems, Showpad is the only platform that allows you to effortlessly present and distribute your content in a branded environment to all channels, over the cloud, and easily measure its impact on the business. With Showpad, sales and marketing teams work better together to advance conversations, inspire loyalty, and accelerate your business. Deploy Showpad quickly, and scale as your company and content grow.

LawnStarter is an online platform for outdoor home services. Our user-friendly app connects outdoor service pros with homeowners in 120 U.S. markets. Through technological innovation and top-tier talent management, LawnStarter has experienced exponential growth. As the name suggests, we began as a lawn care marketplace but have expanded into other vertices, including: Pest control Pool care Gutter cleaning Tree care Roofing

Axiom is the fastest growing provider of tech-enabled legal services. We combine deep legal and business expertise with operational prowess to help clients minimize risks, reduce operating costs and accelerate revenue